Irregular operation on 206 x line gasoline

slm friends got 206 x-line 2004 The vehicle is super at lpg now but when it first runs (on gasoline) it runs erratically. the vehicle is running in one starter, but when idling, when I press the gas steadily, the speed of itself changes, whereas I press the throttle steadily, this situation continues until the engine warms up. my spark plugs are new but they were champions? fuel and air filter changed 2 months ago, if you help, I can move it (I am in a place where the bidet is seeing -20 in winter, just before winter starts)

Did it happen after LPG was clicked ?? Or was it causing trouble in gas before?

Before the LPG, it was bikac times. The fuel malfunction lamp came on and went out by itself. Then, when the weather got warmer, there was no problem. havr started to cool down (pain province) the night started to be 0c.

Butterfly cleaning and a heat sensor in the butterfly are useful to replace.

yesterday I went to peogeot service yesterday, nothing came out on the computer .... butterfly clean spark plugs no problem ... etc etc. They offered a complete cleaning of the fuel system from the tank to the engine ... I did not get it done .... I'll go to the emsgas service tomorrow. Let's see what they will say ???

In Pugs, the tube breaks the order, my friend.

Let my teacher check the gas injectors in the vehicle.